This alphabetical Mental Disorders list, also called Psychological Disorders, Psychiatric Disorders, and Mental Illnesses has been gathered from a wide variety of sources including the DSM-IV, DSM 5, ICD-10 Chapter V, and online resources including the Wikipedia page on mental disorders and the American Psychiatric Association.
While we have attempted to make this a complete alphabetical list of mental illnesses, including those that are no longer recognized in either the DSM 5 or ICD-10 Chapter V; there are often local disorders that we are not aware of. Please consult with our local mental health professionals.
There are also older disorders and mental health conditions that we have made educated guesses based on our own research. If you see that we’re missing something, please contact us and let us know. List of Psychological Disorders | Substance Abuse Disorders | Childhood Disorders
Alphabetical List Of Mental Disorders, Psychiatric Disorders, And Neurological Disorders Including:
Types of Mental Health Disorders / Psychiatric Disorders / Neurological Disorders Starting With A
- Absence seizure: Also called the less common Petit Mal Seizure, these seizures typically cause a short period of “blanking out” or staring into space. Like other kinds of seizures, they are caused by abnormal activity in a person’s brain. [Epilepsy Foundation, Mayo Clinic]
- Abulia: A pathological inability to make decisions or take action.
- Acute Stress Disorder: Also known as Acute Stress Reaction and sometimes called Shock, this is a psychological condition caused by experiencing or witnessing a terrifying or traumatic event, such as a severe automobile accident, violent crime, or death. It should not be confused with the unrelated circulatory condition of shock, or the concept of shock value. Acute Stress Reaction may develop into PTSD if untreated. [PsychCentral, VA.gov]
- Adjustment Disorders: Adjustment Disorder is defined as a maladaptive response to a normal, psychosocial stressor that has occurred in the past three months, and is not caused by another mental illness.
- Adverse effects of medication NOS
- Age-related Cognitive Decline: (now known as Dementia and Neurocognitive Decline)
- Agoraphobia: This is a condition where an individual doesn’t wish to go to places or face situations where they could become exposed to panic attacks.
- Akiltism: [Note from MHM Staff ] We were unable to find any solid information about this disorder. Our best guess is that this disorder was once used as a catch-all for unknown diagnoses, it seems to be based on the word “akilter” meaning off-kilter or unbalanced. Our further assumption is that it was dropped as more understanding was gained and because of the extreme stigma it carried. [Merriam-Webster]
- Alcohol Addiction: According to the National Council on Alcoholism and Drug Dependence, approximately 17.6 million adults abuse alcohol or are physically dependent on it.
- Alzheimer’s Disease: Approximately 19 million Americans have a family member who suffers from Alzheimer’s disease. There are seven stages of Alzheimer’s …
- Amnesia: (also known as Amnestic Disorder) a person suffering from memory amnesia lost parts or all of his memory. It’s not your plain everyday forgetfulness, instead, it is the complete eradication of any or all events and relations.
- Amphetamine Addiction: Amphetamines are some of the most addictive drugs in the world. The best way to overcome an amphetamine addiction is to get help from a professional treatment center.
- Anorexia Nervosa: This is an eating disorder. The symptoms of Anorexia tend to be that the sufferer will eat very little, or not eat at all for a number of days, for fear of gaining weight.
- Anterograde Amnesia: The loss of ability to create new memories after an amnesia event. The inability to recall recent past events, but retaining long-term memories from before the event.
- Antisocial personality disorder: (also known as Sociopathy) “is A psychiatric condition in which a person manipulates, exploits or violates the rights of others … this behavior is often criminal.
- Anxiety Disorder: (Also known as Generalized Anxiety Disorder) A condition in which people experience a constant state of high anxiety, which does not seem to be attributed to any particular cause. Learn more about Anxiety Treatment, Therapy and Counseling here.
- Anxiolytic-related disorders: A number of different disorders that result from the abuse of a class of medications known as sedatives, hypnotics, and anxiolytics (SHA).
- Asperger’s Syndrome: (now part of Autism Spectrum Disorder, ASD) Asperger’s is characterized by social impairment, communication difficulties, and restrictive, repetitive, and stereotyped patterns of behavior.
- Attention Deficit Disorder: (Also known as ADD) Children with this condition generally have challenges paying attention to or concentrating on a given task. They also tend to move constantly and are impulsive.
- Attention Deficit Hyperactivity Disorder: (Also known as ADHD) This is a neurodevelopmental disorder, meaning that the disorder is present at the time of birth. There are 3 types of ADHD:
- Inattentive type
- Hyperactive/Impulsive type
- Combination type
- Autism Spectrum Disorder: (also known as Autism) Autism is classified as one of the pervasive developmental disorders of the brain. It is not a disease. People with classical autism s`how three types of symptoms …
- `Autophagia: A disorder where a person compelled to inflict pain upon oneself by biting and/or eating portions of their own body.
- Avoidant Personality Disorder: Marked social inhibition, feelings of inadequacy, and extremely sensitive to criticism.
Disorders Starting With B
- Barbiturate related disorders: The use of Barbiturates can lead to some of the following: Addiction to stimulants like amphetamines or methamphetamines; antisocial personality disorder; anxiety, bipolar and conduct disorders; depression, insomnia, and schizophrenia.
- Benzodiazepine-related disorders: Benzodiazepines are a class of drugs prescribed due to their effectiveness in treating anxiety, and insomnia. Addiction can occur. Withdrawal symptoms include trouble sleeping, feelings of depression, and sweating.
- Bereavement: A period of mourning after a loss, especially after the death of a loved one. There is no right way to experience bereavement.
- Bibliomania: A passionate enthusiasm for collecting and possessing books.
- Binge Eating Disorder: Binge eating disorder is an illness which resembles bulimia nervosa. It differs from bulimia because its sufferers do not purge their bodies of excess food.
- Bipolar disorder (also known as Manic Depression, includes Bipolar I and Bipolar II):
- Bipolar I:
- Bipolar II:
- Body Dysmorphic Disorder: This is a mental disorder where an individual can’t stop thinking about perceived defects or flaws in their appearance.
- Borderline intellectual functioning: Also known as borderline mental retardation. A person has below average cognitive ability (IQ of 70-85), but not as severe as an intellectual disability (IQ below 70).
- Borderline Personality Disorder: A psychological illness involving unstable moods, behavior, and relationships.
- Breathing-Related Sleep Disorder: Characterized by abnormal breathing during sleep. Symptoms include snoring, apneas or daytime sleepiness.
- Brief Psychotic Disorder: A psychosis that lasts less than one week that is a reaction to severe stress.
- Bruxism: A condition in which you grind, gnash or clench your teeth.
- Bulimia Nervosa: A type of eating disorder where a person frequently eats a large amount of food then tries to prevent weight gain with self-induced vomiting.
Disorders Starting With C
- Caffeine Addiction: refers to a condition where individuals develop a dependency on caffeine, leading to withdrawal symptoms when consumption is reduced or stopped.
- Cannabis Addiction: also known as cannabis use disorder, involves a problematic pattern of using cannabis, leading to negative effects on various aspects of life and difficulty in controlling its use.
- Catatonic disorder: A subtype of schizophrenia characterized by extreme changes in motor activity, ranging from excessive and purposeless movement to immobility and rigidity
- Catatonic schizophrenia: A subtype of schizophrenia where individuals experience prominent catatonic symptoms, such as motor immobility or excessive, purposeless movement, along with other symptoms like hallucinations, delusions, and disorganized thinking.
- Childhood amnesia: Also known as infantile amnesia, refers to the phenomenon where adults have difficulty recalling early memories from their early childhood years, typically before the age of 3 or 4, due to the ongoing development of cognitive and neural processes during that period.
- Childhood Disintegrative Disorder: (now part of Autism Spectrum Disorder) Also known as Heller’s syndrome, is a rare condition where a child experiences a significant loss of previously acquired skills and developmental milestones, leading to regression in multiple areas such as language, social interactions, and motor abilities.
- Childhood Onset Fluency Disorder: Formerly known as stuttering, is a communication disorder characterized by disruptions in the normal flow of speech, often involving repetitions, prolongations, or blocks of sounds, syllables, words, or phrases.
- Circadian Rhythm Disorders: A group of conditions in which an individual’s internal body clock becomes out of sync with the external day-night cycle, leading to disturbances in sleep-wake patterns and other physiological processes
- Claustrophobia: An anxiety disorder characterized by an intense fear of confined spaces or situations where escape might be difficult, causing individuals to experience anxiety, panic attacks, and avoidance behaviors when faced with such situations.
- Cocaine related disorders
- Communication disorder
- Conduct Disorder
- Conversion Disorder
- Cotard delusion
- Cyclothymia (also known as Cyclothymic Disorder)
Disorders Starting With D
- Delusional Disorder
- dementia (now known as dementia)
- Dependent Personality Disorder (also known as Asthenic Personality Disorder)
- Depersonalization disorder (now known as Depersonalization / Derealization Disorder)
- Depression (also known as Major Depressive Disorder)
- Depressive personality disorder
- Derealization disorder (now known as Depersonalization / Derealization Disorder)
- Developmental coordination disorder
- Diogenes Syndrome
- Disorder of written expression
- Dissocial Personality Disorder
- Dissociative Amnesia
- Dissociative Fugue
- Dissociative Identity Disorder (formerly known as Multiple Personality Disorder)
- Down syndrome
- Dysthymia (now known as Persistent Depressive Disorder)
Disorders Starting With E
- Eating disorder NOS
- Ekbom’s Syndrome (Delusional Parasitosis)
- Emotionally unstable personality disorder
- Enuresis (bedwetting)
- Exhibitionistic Disorder
- Expressive language disorder
Disorders Starting With F
- Factitious Disorder
- Female Sexual Disorders
- Fetishistic Disorder
- Folie à deux
- Fregoli delusion
- Frotteuristic Disorder
- Fugue State
Disorders Starting With G
- Ganser syndrome
- Gambling Addiction
- Gender Dysphoria (formerly known as Gender Identity Disorder)
- Generalized Anxiety Disorder
- General adaptation syndrome
- Grandiose delusions
Disorders Starting With H
- Hallucinogen Addiction
- Haltlose Personality Disorder
- Histrionic Personality Disorder
- Primary hypersomnia
- Huntington’s Disease
- Hypoactive sexual desire disorder
- Hyperkinetic syndrome
Disorders Starting With I
- Impulse control disorder
- Impulse control disorder NOS
- Inhalant Addiction
- Intellectual Development Disorder
- Intermittent Explosive Disorder
Disorders Starting With J
- Joubert syndrome
Disorders Starting With K
- Korsakoff’s syndrome
Disorders Starting With L
- Lacunar amnesia
- Language Disorder
- Learning Disorders
Disorders Starting With M
- Major Depression (also known as Major Depressive Disorder)
- Major depressive disorder
- Male Sexual Disorders
- Mathematics disorder
- Medication-related disorder
- Mental Retardation (now known as Intellectual Development Disorder)
- Morbid jealousy
- Multiple Personality Disorder (now known as Dissociative Identity Disorder)
- Munchausen Syndrome
- Munchausen by Proxy
Disorders Starting With N
- Narcissistic Personality Disorder
- Neglect of child
- Neurocognitive Disorder (formerly known as Dementia)
- Neuroleptic-related disorder
- Nightmare Disorder
- Non Rapid Eye Movement
Disorders Starting With O
- Obsessive-Compulsive Disorder
- Obsessive-Compulsive Personality Disorder (also known as Anankastic Personality Disorder)
- Opioid Addiction
- Oppositional Defiant Disorder
- Orthorexia (ON)
Disorders Starting With P
- Pain disorder
- Panic attacks
- Panic Disorder
- Paranoid Personality Disorder
- Parkinson’s Disease
- Partner relational problem
- Passive-aggressive personality disorder
- Pathological gambling
- Pedophilic Disorder
- Persecutory delusion
- Persistent Depressive Disorder (also known as Dysthymia)
- Personality change due to a general medical condition
- Personality disorder
- Pervasive developmental disorder (PDD)
- Phencyclidine related disorder
- Phobic disorder
- Phonological disorder
- Physical abuse
- Polysubstance related disorder
- Postpartum Depression
- Post-traumatic embitterment disorder (PTED)
- Post Traumatic Stress Disorder
- Premature ejaculation
- Premenstrual Dysphoric Disorder
- Psychogenic amnesia
- Psychological factor affecting medical condition
- Psychoneurotic personality disorder
- Psychotic disorder, not otherwise specified
Disorders Starting With Q
- There Are Currently No Disorders Starting With Q
Disorders Starting With R
- Reactive Attachment Disorder
- Reading disorder
- Recurrent brief depression
- Relational disorder
- REM Sleep Behavior Disorder
- Restless Leg Syndrome
- Retrograde amnesia
- Retts Disorder (now part of Autism Spectrum Disorder)
- Rumination syndrome
Disorders Starting With S
- Sadistic personality disorder
- Schizoaffective Disorder
- Schizoid Personality Disorder
- Schizophreniform disorder
- Schizotypal Personality Disorder
- Seasonal Affective Disorder
- Sedative, Hypnotic, or Anxiolytic Addiction
- Selective Mutism
- Self-defeating personality disorder
- Separation Anxiety Disorder
- Sexual Disorders Female
- Sexual Disorders Male
- Sexual Addiction
- Sexual Masochism Disorder
- Sexual Sadism Disorder
- Shared Psychotic Disorder
- Sleep Arousal Disorders
- Sleep Paralysis
- Sleep Terror Disorder (now part of Nightmare Disorder)
- Social Anxiety Disorder
- Somatization Disorder
- Specific Phobias
- Stendhal syndrome
- Stereotypic movement disorder
- Stimulant Addiction
- Stuttering (now known as Childhood-Onset Fluency Disorder)
- Substance related disorder
Disorders Starting With T
- Tardive dyskinesia
- Tobacco Addiction
- Tourettes Syndrome
- Transient tic disorder
- Transient global amnesia
- Transvestic Disorder
Disorders Starting With U
Disorders Starting With V
Disorders Starting With W
- There Are Currently No Disorders Starting With W
Disorders Starting With X
- There Are Currently No Disorders Starting With X
Disorders Starting With Y
- There Are Currently No Disorders Starting With Y
Disorders Starting With Z
- There Are Currently No Disorders Starting With Z